spring用到的设计形式-工厂模式

spring用到的设计模式-工厂模式
Spring用到的设计模式之一
核心：用到工厂设计模式
1.Person.java

package com.simplefactory;public interface Person {public String sayHello(String name);public String sayGoodBye(String name);}

package com.simplefactory;public class Chinese implements Person{@Overridepublic String sayGoodBye(String name) {return "good by:"+name;}@Overridepublic String sayHello(String name) {return "hello:"+name;}}

package com.simplefactory;public class American implements Person {@Overridepublic String sayGoodBye(String name) {return "good by:"+name;}@Overridepublic String sayHello(String name) {return "hello:"+name;}}

package com.simplefactory;public class Factory {public Person getPerson(String name){if("american".equals(name)){return new American();}else if("chinese".equals(name)){return new Chinese();}else{return null;}}}

package com.simplefactory;public class Client {public static void main(String[] args) {Factory factory=new Factory();Person person=factory.getPerson("chinese");System.out.println(person.sayHello("张三"));System.out.println(person.sayGoodBye("张三"));person=factory.getPerson("american");System.out.println(person.sayHello("Tom"));System.out.println(person.sayGoodBye("Tom"));}}